3Com Router 3031, Справочник по командам

Страница: 562 / 838

562 C
HAPTER
6: R
OUTING
P
ROTOCOL
[3Com-ospf-1-area-0.0.0.0]
asbr-summary Syntax
asbr-summary ip-address mask [ not-advertise | tag value ]
undo asbr-summary ip-address mask [ not-advertise | tag value ]
View
OSPF view
Parameter
■
ip-address: Matched IP address in dotted decimal notation.
■
mask: IP address mask in dotted decimal notation.
■
not-advertise: Not advertises routes matching the specified IP address and
mask. Aggregated route will be advertised without this parameter.
■
tag-value: Control advertisement of routes via Route-policy. It is in the range
from 0 to 4294967295. If it is not specified, it is 1 by default.
Description
Using the asbr-summary command, you can configure summarization of imported
routes by OSPF. Using the undo asbr-summary command, you can cancel the
summarization.
By default, summarization of imported routes is disabled.
After the summarization of imported routes is configured, if the local router is an
autonomous system border router (ASBR), this command summarizes the
imported Type-5 LSAs in the summary address range. When NSSA is configured,
this command will also summarize the imported Type-7 LSAs in the summary
address range.
If the local router acts as both an ABR and a switch router in the NSSA, this
command summarizes Type-5 LSAs transformed from Type-7 LSAs. If the router is
not the router in the NSSA, the summarization is disabled.
For the related command, see display ospf asbr-summary.
Example
Set summarization of 3Com imported routes.
[3Com-ospf-1] asbr-summary 10.2.0.0 255.255.0.0 not-advertise
authentication-mode Syntax
authentication-mode [ simple | md5 ]
undo authentication-mode
View
OSPF area view
Parameter
■
simple: Simple text authentication mode.